Fly screen



FLEXiBLE'aOFBifiAEZET w AN Aug. 25, 1925. 1,550,879

' J. H. CLARK FLY SCREEN Filed Mar h 1924 2 Sheets-Sheet 1 W JZZ; lwi'i 7 ----.-.------v-\v w mill-HUM, I

FLEXIBLE 8c PORTABLE i DRAFTSMAN Aug. '25, 19.25. 1,550,579

J. H. CLARK FLY SCREEN Filed March 1 1924 2 Sheets-Sheet 2 ...v... w LulLl-JJJ-IU, j

Patented Aug. 25, 1925.

UNITED S DEA F'TS MAW JAMES HAIRRISON CLARK, OF EXETEB, VIRGINIA.

' To all whom it may concern:

" citizen of the United States, residing at Exeter, in the county of Wise and State of Virginia, have invented a new and useful Fly Screen, of which the following is a specification.

This invention relates to roller screens for windows adapted to have the roolers journaled on the sash at the'upper end of the upper sash and the lower end of the lower sash with the other ends of the screen fixed to the upper portion of the frame and the window sill respectively.

The object of the invention is to provide a screen of this character which may be applied to any window in a few minutes without removing any part from the window and which when applied is fly proof and which is put up in screen casings complete with the screen rollers ready to apply.

Another object is to provide roller screens the casings of which are adjustable to adapt them to fit window frames of varying widths to insure the close fitting of the screen in connection with the window frame to prevent flies from entering.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings Figure 1 represents a front elevation of a window equipped with these improved screens.

Fig. 2 is a longitudinal vertical section thereof.

Fig. 3 is a detail vertical section through the screen casing mounted on the upper sash.

Fig. 4 is a longitudinal section through the screen casing and rollers the parts broken out for convenience in illustration.

Fig. 5 is an end elevation of the screen casing showing the means for adjusting the casing to fit sashes of different widths; and

Fig. 6 is a similar view taken from the other end of the casing.

FLY SCREEN.

Ap lication filed March 18, 1924. Serial No. 700,094.

Fig. 7 is a detail perspective view of the roller, and

Fig. 8 is a detail sectional View of the ad justing means for the screen casing.

In the embodiment illustrated the window frame 1 is shown having the usual upper sash 2 and lower sash 3 mounted to slide therein and which may be provided with any improved construction of sash balance.

A roller housing 4.- is mounted 011 the upper edge of the upper sash 2 and a similar housing 5 is secured to the lower edge of the lower sash. These roller housings are exactly alike in construction except that they are arranged on the sash in reversed position and extend the full width of the sash. Mounted in each housing is a roller 6 on which thescreens 7 and 8 are designed to be wound, one edge of the screen being attached to the roller and the other to the window frame, it being of course understood that the upper screen is attached at its free end to the upper portion of the window frame while the lower portion of the lower screen is attached to the window sill.

Located in each roller 6 is a rod 9 which extends the full width of the window and mounted on the rod within the roller is a coiled spring 10 secured at one end to the rod and at its other end to the roller. This rod is journaled in the end walls of the housing in which it is mounted as shown clearly in Fig. l and operates in the manner of a spring shade roller. The screen passes from roller 6 out through the rear wall of the housing and as shown is guided over a roller 11 which is mounted in sections 12 and 13 of the end members of the housing, said sections being adjustable toward and away from the body portion of the housing to adapt the casings or housings to be mounted on a window sash of varying widths and to insure the screen lying flat against the inner faces of the window frame at the edges thereof. Set screws 14 are threaded through the lower portions of the sections 12 and 13 and engage the lugs 15 on the body of the housing and as shown clearly in Figs. 3, 5, 6 and 8. It will thus be obvious that by adjusting these screws 14 the widths of the housing may be varied and the guide rollers 11 over which the screens pass positioned so that the screen will be in alinement with the outer faces of the window sash and the side edges of said. screen snugly fit against the window frame so as to prevent the en trance of flies at this point.

From the above description it will be obvious that when the lower sash of the window is raised the screen 8 will move with it and so likewise when the upper sash 2 is raised or lowered screen 7 will move with it the spring rollers providing for the winding and unwinding of the screens thereon.

The housings 4; and 5 fit snugly within the window frame and form tight closures when the sash are closed.

It will be seen that this arrangement of screens avoids the necessity of cutting away either the window sash or the frame and that they may be quickly mounted on the sash by simply inserting screws through the housing into the sash as shown in Fig. 1.

In Fig. 1 the lower casing 5 is shown equipped with a finger grip 16 to facilitate raising and lowering of the sash, 3.

jVhat is claimed is 1. A roller screen for windows comprising a casing substantially U-shaped in cross section adapted to fit one edge of a window sash, and havingori'fialhadafie dto hverlap the face of the sash and be secured thereto, the other wall terminating short of the sash opening for the passage of the screen therethrough, a roller mounted in said casing, a rod extending through said roller having a corded spring connected with the rod and with the roller, a screen adapted to be wound on said roller and to pass out through the openings in the casing and to be connected at its free end to the window frame, and means for adjusting the casing to adapt it tofit window sash of varying thickness.

2. A roller screen for windows comprising a casing substantially inverted U-shaped in cross section to be mounted on one edge of a window sash, one edge of said casing being designed to overlap the front face of the sash and to be secured thereto, the other edge of said casing terminating short of the sash, said casing having end sections adjustable toward and away from the body portion thereof, a spring roller mounted in said casing, a screen secured at one end to said roller and adapted to be wound thereon, said screen passing out through an opening formed by the short wall of the casing, and a roller mounted on the casing section over which said screen is designed to be guided, and set screws for adjusting said sections toward and away from the body portion of the casing to adapt the casing to fit window sash of varying thickness.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

JAMES HAIRRISON CLARK. 

